Safety device for printing-presses.



G.- EDDY. SAFETY DEVICE FOR PRINTING PRESSES.

APPLICATION FILED SEPT. 26, 19M.

' Patented June 4, 1918;

ma ma,

GEORGE A. EDDY,

OF CLEVELAND,

OHIO.

SAFETY DEVICE FOR PRINTING-PRESSES.

Application filed September 26, 1914.

To all whom it may concern: C

Be it known that I, Gnonon A. EDDY, a citizen of the United States,residing at Clevelanchin the county of Cuyahoga and State of Ohio, haveinvented a certain new and useful Improvement in Safety Devices forPrinting-Presses, of which the following is a full, clear, and exactdescription.

This invention relates to a safety device for use in connection withprinting presses of the type wherein there is a movable platen, uponwhich platen the sheet to be printed is placed by hand.

The device of this invention operates in connection with a movableplaten, so that when the movable platen is in its open position toreceive a sheet to be printed, the safety device is moved away from themovable platen and in such position as in no way to interfere with theplacing of the sheet to be printed upon the'platen, but when the platenmoves to the position in which the sheet is printed, the guard isprojected into a position adjacent and above the upper edge of themovable platen, so that if the hand of the operator is not withdrawnfrom the face of the movable platen the guard will contact with the handof the operator pushing the hand upward and away from the face of themovable platen so that it will be impossible, without intention upon thepart of the operator, for his hand to remain upon the face of themovable platen when the same moves into print ing position.

Generally speaking, the invention comprises elements and combinationsthereof set forth in the accompanying claims.

Reference should be had to the accom-' panying drawings forming a partof this specification, in which Figure 1 is a top plan view of a movableplaten of a printing press having a movable platen and the device of myinvention attached thereto; Fig. 2 is a perspective elevation of aprinting press showing my invention attached thereto; and Fig. 3 is aside elevation of a portion of a printing press with the device of myinvention attached thereto.

At 1 there is indicated the fixed bed of a printing press which carriesthe type set up of the matter to be printed, and at 2 is indicated theinking plate which is common in printing press construction. At 3 thereSpecification of Letters Patent.

Patented June 4, 1918.

Serial No. 863,611.

is indicated a movable platen. This platen is mounted upon a base 4.,which by means of bolts or other means is secured to a support 5. Thissupport 5 is journaled in suitable standards 6, and to the part 5 at aportion which extends beyond the upright 6 there is secured a crank 7.The crank is provided with a roller 8 which engages in the cam groove 9of a gear wheel 10, this gear wheel being operated in any suitablemanner.

Rotation of the gear 10 will turn the crank 7 which will cause themovable platen 3 to move in a position parallel with and against the bed1 and at the reverse end of its movement to lie in what 1 term positionsuch as shown in dotted lines in Fig. 3, which is approximatelyhorizontal, in which position the operator places the sheet of paper onthe platen 3, which sheet is to be subsequently printed.

All the construction thus described is well known in the printing art,and is usual construction'of a well known type of press.

For purposes of disclosure, in the drawings and in my description I haveshown and will describe the application of my device to a machine of thekind described.

Upon thefixed standards 6 which receive the journals of the member 5, Ibolt a pair of supports represented at 11. To these supports there ispivotally secured the opposite ends of a frame 12. Cooperatingwithaportion of the frame 12 is a sleeve 13, which is free to turn uponthe frame 12. From this sleeve there extends a rod 14. The rod ismounted to have an articulatedconnection which in the present instanceis a sliding connection with a portion of the movable platen 3. Asshown, the base 4 which supports the platen 3 is provided with anopening through which extends the rod 14.

As the platen 3 moves to its open position, or that position in whichthe operator feeds a sheet thereto, the frame 12 will be moved so thatthe upper part is carried beneath and away from the platen, thus leavingthe platen unobstructed and the operator unhampered in placing a sheetto be printed upon the platen. As the platen moves to its closedposition, or that position in which the sheet thereon is moved toprinting position, the upper portion of the frame is moved adjacent toand above the upper edge of the platen 3.

If in placing a sheet upon the platen 3, the hand of the operator is notwithdrawn by the operators own volition from the face of the platen, theframe 12 will engage the hand of the operator and push his hand from infront of the platen 3 and so prevent any accidental squeezing of thehand of-the operator between the movable platen 3 and the stationary bed1.

The frame 12 may carry a netting 0r similar means, as indicated at 15,which will prevent the hand of the operator from being thrust beneaththe top bar of the frame 12.

The particular mounting of my guard device upon the press shown is butillustrative of the manner in which my device may be utilized, andvarious changes may be made in the details of the mounting of the safetydevice without departing from the spirit of my invention. I do not limitmyself to the mounting of the supports 11 upon the particular portion ofthe printing press shown. They may be mounted in any convenient placeupon the machine which will produce the resultant cooperation andco-action between the movable platen and the frame 12 which haspreviously been described.

Having thus described my invention, what I claim is i l. The combinationwith a movable platen of a printing press, of a guard comprising a framesaid frame being pivotally mounted uponv a non-moving part of the press,a 7

ing member which is parallel with the top of the platen, the ends of theside members being pivotally mounted upon a non-moving part of thepress, a guide upon the platen, a member slidable in such guide, saidlast mentioned member being pivotally connected to the frame.

In testimony whereof, I hereunto affix my signature in the presence. oftwo witnesses.

I GEORGE A. EDDY. Witnesses A. J. I-IUDsoN, L. I. PORTER.

Copies of this patent may be, obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. 0.

